Cutter line gauge



Dec. 31, 1935. A. K. TAYLOR CUTTER LINE GAUGE Filed Oct. 25, 1934 3 Shets-Sheet l Dec. 31; 1935. A. K; TAYLOR f 2,026,145

CUTTER LINE GAUGE Filed Oct. 25, 1954 s Sheets-Sheet I Jul/(WWW Patented Dec. 31, 1935 UNITED STATES CUTTER LINE GAUGE Arthur K. Taylor, Baltimore, Md., assignor to The United States Printing and Lithograph Company, Baltimore, Ohio Application October 25,

11 Claims.

My invention relates to machines for accurately placing sheet material relatively to cutting means to insure the cut taking place at exactly the desired location, and to certain details to attain that end.

Especially in label cutting is it desirable to cut uniformly, many'stacks of sheets of paper into smaller parts. Many of the cuts are not uniformly spaced, and my invention will enable the operator to make each out exactly where desired.

One object of my invention is to make an indicator which will project on the material to be cut the exact place where the cutting means will operate, so that the operator need not bring down the clamp on the material, or try to otherwise approximate the location the cutter will take; another object is to make an indicator which will approach the cutting location from the bevel side of the cutter, so as to be out of the way of the clamp and to allow a free view of the cutting line and the restof the stack of material; another object is to make an indicator which may be brought down upon the material and yieldingly held there while stops for the material gauge are adjusted and then the indicator may be retracted out of the way of the cutter; another object is to make such an indicator operable from a position adjacent the bed upon which the uncut material rests; another object of my invention is to make the cutter inoperable during the use of the indicator; another object is to make an indicator which will allow a clear view of both sides of the line of the proposed cut; other objects and advantages of my new indicator will appear from the following description and the accompanying drawings forming a part hereof in which I have shown one modification of my invention.

Figure 1 is a side elevation of a cutting machine embodying my invention.

Figure 2 is a partial rear view thereof.

Figure 3 is a horizontal sectional View on line 3-3 of Figure2.

Figure 4 is vertical sectional view on line 4-4 of Figure 2.

Figure 5 is an enlarged side view of the indicator bar and operating mechanism on line 5-5 of Figure 3.

Figure 6 is a view of the slipping driving connection on line 6-6 of Figure 2.

Figure 7 is a detailof the device for inhibiting operation of the cutter during operation of the indicator.

Figure 8 is a detail of the electric wiring.

Md., a corporation of 1934, Serial No. 749,883

In the drawings similar numerals refer to similar parts throughout the several views.

Although not restricted to use thereon, the invention is shown applied to a cutting machine such as shown in the patent to Mulroney, Number 5 1,653,303 dated December 20, 1927. In this ma chine the main frame I has thereon a material supporting bed 2 and a shelf 3 for receiving cut material. A gauge 4 regulated in its movement toward the cutter by stops 5 on shaft 6, may 10 be used to push the stack of material back under the knife 1. A clamp 8 is brought down on the material to hold it while cutting. A constantly operating motor 9 is thrown into driving connection with the knife by a clutch operated by 16 pulling bar I 0 on rod ll toward the operator.

7 The knife 7 has a beveled edge [2 at its back and a fiat side l3, forward, so that the sections cut from the material are pushed back by the penetrating knife, allowing the forward part of 20 the stack to remain stationary. The knife rides between uprights on the machine, the forward ones, I4, having less space between them than the rear ones I5. This allows a bar l6 to be projected into the path of the knife, and to slide 25 down guided by uprights l4 upon a stack of material IT. The leading edge I 8 of bar I6 is the exact line that the leading edge of the knife will take. Parts are omitted, or cut out, from the leading edge of the bar l6, as at I9, so that the 80 operator can see back of the line of the proposed cut. Often lines are drawn on the material where the out should take place, and this line' may thus be seen both forward and back of the cutting line, and the material adjusted accord- 35 ingly.

The bar I6 is pivoted to one end of racks 20, and it has lugs 2| thereon to keep it in an upright position when hanging freely. These racks are slidably mounted in saddles 22 pivoted on 40 shaft 23 which freely rotates in bearings on the inside of door 24 back of the knife. This door is hinged at 25, and has a catch 26 to hold it closed. Shaft 23 has pinions 21 thereon meshing with racks 20 and adapted to drive the same back and 45 forth. To the free ends of the saddles 22 rods 28 are pivoted, and these rods are slidable in sleeves 29 pivoted on the inside of the door 24. Pins 30 prevent the rods from drawing out of their sleeves, and set screws 3| allow of accurate angular adjustment of. the saddles and racks 20 in their inactive position. Springs 32 on rods 28 tend to hold them extended, away from sleeves 29.

A stop 33 on the rack near the opening side is operated from switch 41 of the door 24 contacts with one end of a centrally pivoted lever 34, pivoted beneath the door 24. This lever is held. back by stop 33 when the racks are up and bar [5 withdrawn into inactive position out of the path of the knife.

In line with hinges 25, a stub shaft 35 has a gear 35 driving gear 3? on one end of shaft 23 projecting through door 24. This stub shaft is driven by gear 38 mounted thereon, which is in turn driven by worm 39, driven by motor 49. The motor shaft and worm shaft are connected by a piece of leather 4| held fast in slots in the ends thereof. Pinned to stub shaft 35, a cup shaped member 42 has a member 43 fitting therein and pinned to rotate therewith, by pin 44, and the upward pressure of. this member 43 on leather washer 46 is adjusted by screw 45. This washer by its friction with driven gear 38, and member 43, rotates the stub shaft 35.

Motor 49 may be driven in either direction, and by foot treadle 4B which is held up by spring 49 until depressed. The switch 41 has contacts 50, which, when connected with the contacts on the switch arm, drive the motor to drive the bar "5 down upon the material. The treadle is held down and the bar is held yieldingly down upon the material as long as desired by the motor, through the slipping of tha washer between gear 38 and member 43. When it is desired to raise bar I6, the foot is removed from the treadle 48, the switch arm passes from contacts and over contacts 5|, which reverses the motor and lifts the bar, and if the motor continues to spin even after the switch arm has left the contacts 5|, the washer 46 will simply slip on its contacting surfaces. Switches 52 and 53 may be used to turn off the main motor 9 and the auxiliary motor 40, respectively, when desired.

The outwardly extending end of lever 34 operates another lever 54 on pivoted shaft 55. Spring 56 fast on fixed sleeve 51, through which rod 58 passes, and rod 58, pivoted to arm 59 fast on shaft 55 tends to pull shaft 55 in a clockwise direction. The other end of the shaft 58 is cut out, as shown, to catch lever 60 fast on rod II, when the spring is contracted, and thereby prevents the throwing in of the knife clutch. Thus when the door 24 is opened, and more particularly, when stop 33 on rack 20 is removed from lever 34, the knife cannot be operated.

It will be apparent that when the motor is operated to drive bar l6 down, the bar first strikes uprights l4, and then by compressing of springs 32, slides down upon the stack of material, as shown in dotted lines in Figure 5.

My invention is particularly useful on the type of cutter shown. When the stops 5 are to be set, one stack of material may be put on the machine and each stop, where each cut is desired, may be set accurately by the use of. the indicator bar and then the rest of the stacks may be cut from this one setting. It is apparent however, that the improvement is equally useful in locating properly any single cut thatit may be desirable to make. Many changes may be made in the construction of my invention without departing from the spirit thereof.

What I claim as new and desire to secure by Letters Patent is:

1. In a sheet cutting machine, a cutting knife having a flat side and a beveled side for cutting sheet material, a material supporting bed extending forwardly from the flat side of said knife, means to indicate on the material visible from the supporting bed the location of a proposed cut and means operable from a position adjacent said bed to operate said indicating means.

2. In a sheet cutting machine, a cutting knife having a flat side and a beveled side for cutting sheet material, a material supporting bed extending forwardly from the flat side of said knife, a bar projectable upon the material and in the entire cutting line of said knife visibly indicating from the supporting bed the relative location of the material and the cutting line.

3. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material visible from the supporting bed the location of a proposed cut, positive means to lower said indicating means upon the material and to raise them therefrom and means operable adjacent said bed to operate said lowering and raising means.

4. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material visible from the supporting bed the location of a proposed cut, means to lower said indicating means upon the material, to yieldingly hold them there and to raise them therefrom.

5. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material visible from the supporting bed the location of a proposed cut comprising a bar projectable upon the material from back of the cutting means and means operable adjacent said bed to project and retract said bar.

6. In a sheet cutting machine, vertically moving means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material visible from the supporting bed the location of a proposed cut comprising a bar projectable into the vertical plane of the cutting means, then downwardly upon the material and retractable therefrom and means operable adjacent said bed to operate said bar through said movements.

'7. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material visible from the supporting bed the location of a proposed cut comprising a bar yieldingly projectable from back of the cutting means upon the material and retractable therefrom, cent said bed to operate said bar through said movements.

8. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material visible from the supporting bed the location of a proposed cut comprising a bar mounted on racks pivoted in a support back of said cutting means, power driven pinions meshing with said racks to project said bar upon said material and to retract it therefrom.

9. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material the location of a proposed cut comprising a bar mounted on racks pivoted in a support back of said cutting means and power driven pinions meshing with said: racks to project said bar into the path of and means operable adjasaid cutting means, then yieldingly downward upon said material and to retract it therefrom.

10. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending forwardly from said cutting means, means to indicate on the material the location of a proposed cut and means operable from a position adjacent said bed to operate said indicating means and means to inhibit the operation of said indicating means during the operation of said cutting means.

11. In a sheet cutting machine, means for cutting sheet material, a material supporting bed extending from said cutting means, means to indicate on the material the location of a proposed cut comprising a bar having one edge projectable onto the material in the position of the proposed cut, sections of said edge of the bar being omitted to allow inspection of the material back of the proposed cut.

ARTHUR K. TAYLOR. 

